From 3743c2f0251743b8ae968329708bbbeefff244cf Mon Sep 17 00:00:00 2001 From: Maxim Levitsky Date: Mon, 6 Jun 2022 21:08:24 +0300 Subject: KVM: x86: inhibit APICv/AVIC on changes to APIC ID or APIC base Neither of these settings should be changed by the guest and it is a burden to support it in the acceleration code, so just inhibit this code instead. Signed-off-by: Maxim Levitsky Message-Id: <20220606180829.102503-3-mlevitsk@redhat.com> Signed-off-by: Paolo Bonzini --- arch/x86/kvm/svm/avic.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'arch/x86/kvm/svm/avic.c') diff --git a/arch/x86/kvm/svm/avic.c b/arch/x86/kvm/svm/avic.c index 54fe03714f8a..8dffd67f6086 100644 --- a/arch/x86/kvm/svm/avic.c +++ b/arch/x86/kvm/svm/avic.c @@ -910,7 +910,9 @@ bool avic_check_apicv_inhibit_reasons(enum kvm_apicv_inhibit reason) BIT(APICV_INHIBIT_REASON_PIT_REINJ) | BIT(APICV_INHIBIT_REASON_X2APIC) | BIT(APICV_INHIBIT_REASON_BLOCKIRQ) | - BIT(APICV_INHIBIT_REASON_SEV); + BIT(APICV_INHIBIT_REASON_SEV | + BIT(APICV_INHIBIT_REASON_APIC_ID_MODIFIED) | + BIT(APICV_INHIBIT_REASON_APIC_BASE_MODIFIED)); return supported & BIT(reason); } -- cgit v1.2.3-71-gd317